7 min read
Window and Door Replacement Checklist for Ontario Homeowners
Plan your window and door replacement in Simcoe County and the GTA. Compare styles, installation scope, quotes and the details to confirm before ordering.
Replacing windows or doors starts with a few practical decisions: what needs attention, which products suit each opening, and what the installation quote includes. Choosing a colour is only one part of the project.
Before ordering, confirm the condition of the existing openings, the proposed installation method, the exact products and finishes, and the full written scope. A clear plan makes it easier to compare quotes and avoid changes after custom products have been ordered.
This checklist is for homeowners in Innisfil, Barrie, Bradford, Keswick, Newmarket, Vaughan and surrounding communities planning a window, entry door or patio door project.
1. Make a room-by-room list
Walk through your home and identify the openings you want reviewed. Give each one a clear name, such as “kitchen over sink” or “front bedroom left,” and take photos from inside and outside.
Record what you notice:
- Where you feel drafts, and when they are most noticeable.
- Windows or doors that are difficult to open, close or lock.
- Visible damage around frames, trim or sills.
- Moisture marks, peeling finishes or recurring water concerns.
- Rooms where you want more ventilation, daylight or privacy.
- Changes to the exterior appearance you would like to explore.
Describe the symptoms rather than deciding the cause yourself. Natural Resources Canada explains that some existing windows can be improved through hardware repairs, caulking or weatherstripping, while others may need replacement. Ask for the condition of the opening to be assessed before choosing the scope. See its guide to upgrading windows and exterior doors.
If you are replacing products in stages, mark which openings matter most now and which can wait. This also helps you plan consistent colours and styles across future phases.
2. Choose window styles around everyday use
Start with how the room works. Think about reaching the handle, furniture placement, cleaning access, the view and where an opening sash would extend outside.
Use these product pages to compare options:
| What you want to compare | Window styles to explore |
|---|---|
| Side-hinged opening windows | Casement windows |
| Top-hinged opening windows | Awning windows |
| Vertically sliding sashes | Double-hung windows |
| A horizontally sliding style | Single tilt slider windows |
| Fixed glass configurations | Casement fixed windows and slim fixed windows |
| A projecting feature window | Bay windows and bow windows |
| A distinctive shape | Architectural shape windows |
Ask which configurations are suitable for your existing opening. A photo can help explain your preference, but final measurements and product suitability need to be confirmed for the project.
You can also browse the complete window collection before your consultation.
3. Plan the complete door system
For an entrance, compare more than the visible door panel. Include the frame, threshold, glass, sidelites, transom, handle set, locking arrangement and finishes in the discussion.
Browse fiberglass entry doors, steel entry doors and patio doors. Then confirm:
- The opening direction and hinge side, recorded clearly on the order.
- Interior and exterior colours, including the frame and trim.
- Glass style and the privacy level you want.
- Whether sidelites or a transom are included.
- Hardware finish and the proposed locking system.
- How the entrance will work with nearby steps, furniture or walkways.
Review multi-point locks and handle sets and the door catalog for ideas. Confirm the selected hardware is compatible with the proposed door system before ordering.
4. Ask what the installation will involve
Two quotes can describe “replacement” while including different work. Ask what stays, what is removed, and how the finished opening will look inside and outside.
Natural Resources Canada distinguishes an insert installation, which retains the existing frame, from a complete tear out, which removes it. An insert depends on the existing frame being sound, sealed and insulated. The appropriate approach should follow the condition of the opening, rather than price alone.
Ask the installer to explain the proposed method and include it in writing. Confirm whether the quote covers interior trim, exterior finishing, disposal and any work needed around the opening. Also agree on how unexpected damage will be documented and priced before additional work proceeds.
Our replacement service and installation service pages explain the types of projects MK Windows & Doors can help with.
5. Compare the exact product specifications
Request the manufacturer, product line, operating style, frame colour, glass package, screens and hardware for each opening. Keep these details alongside the measurements so you can compare like-for-like proposals.
For energy performance, ask for the ratings and certification of the specific model being quoted. Natural Resources Canada identifies ENERGY STAR as a way to find products meeting its efficiency specifications and stresses that installation also affects performance. Its windows, doors and skylights guide is a useful starting point.
Avoid choosing a package based only on a general claim about savings. Ask why the proposed product suits the room and your priorities, and keep a copy of its specifications with your order.
6. Get a written quote you can compare
Use this checklist when reviewing proposals:
| Quote detail | What to confirm |
|---|---|
| Opening schedule | Which windows and doors are included, with quantities |
| Products | Manufacturer, model, style, glass, colours and hardware |
| Installation | Proposed method and work around the opening |
| Finishing | Interior trim, exterior finishing and any exclusions |
| Removal | Disposal of old products and cleanup responsibilities |
| Price | Itemized scope, applicable taxes and optional upgrades |
| Payment | Deposit, payment stages and terms |
| Timing | Estimated order, delivery and installation schedule |
| Warranty | Written product and installation coverage, exclusions and contact process |
| Changes | How substitutions, hidden damage or additional work are approved |
If a line is missing, ask about it. A lower total may reflect a different product, fewer openings or a narrower installation scope.
7. Prepare for measurement, delivery and installation
Before your appointment, gather your opening list, photos and preferred styles. Share your city, approximate project size and whether you need product supply, installation or both.
Ask who will confirm final ordering measurements. Homeowner measurements can help start a discussion, but the responsibility for final sizes should be explicit before products are ordered.
Before installation day, confirm access to each room, space for the crew, parking and how furnishings will be protected. Discuss pets, children and any access concerns. Ask about the expected duration and what arrangements are needed if work spans more than one day.
For a builder or a major renovation, discuss the new construction service early. If you already have an installer, review supply and wholesale options and agree on measurement, collection or delivery responsibilities.
Frequently asked questions
Do I need to replace every window at once?
Your project can be discussed as a complete replacement or in phases. Tell the contractor which openings are the priority and ask how staged ordering will affect product consistency and scheduling.
Can I replace my front door and windows together?
You can request one quote covering both. Ask for the window and door specifications to be listed separately, with the installation scope for each opening clearly identified.
What should I send when requesting a quote?
Send your city, contact details, approximate number of openings, photos and a short description of the problem or change you want. Mention whether you need replacement, new construction, installation or supply only.
How long will the project take?
Ask for an estimate based on the selected products and current availability. Confirm order lead time separately from installation duration, and ask how schedule changes will be communicated.
Does MK Windows & Doors serve my city?
MK Windows & Doors is based in Innisfil and serves communities across Simcoe County, York Region and the GTA, including Barrie, Bradford, Keswick, Newmarket and Vaughan. View the full service-area list to find your community.
Start with a clear project plan
A useful quote begins with a clear description of your home, your priorities and the openings involved. Keep the checklist handy as you compare products and discuss the installation.
Contact MK Windows & Doors for a free quote, call 647-497-5321, or explore our project gallery for window and door ideas.
Further reading
Written by MK Windows & Doors. Questions about your own home? Ask us directly.